Academic Journal
Response of the reactor performance and microbial community to a shift of ISDD process from micro-aerobic to anoxic condition
| العنوان: | Response of the reactor performance and microbial community to a shift of ISDD process from micro-aerobic to anoxic condition |
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| المؤلفون: | Xu X.-J., Shao B., Chen C., Zhang R.-C., Xie P., Wang X.-T., Yuan Y., Wang A.-J., Lee D.-J., Yuan Y.-X., Ren N.-Q. |
| سنة النشر: | 2018 |
| المجموعة: | National Taiwan University of Science and Technology Repository (NTUSTR) / 台灣科技大學 |
| مصطلحات موضوعية: | Anoxic, Bio-selector, Condition switchover, Integrated simultaneous desulfurization and denitrification process (ISDD), Micro-aerobic |
| الوصف: | Micro-aerobic condition has proven to be effective in enhancing sulfide oxidation to elemental sulfur (S0) during integrated simultaneous desulfurization and denitrification process (ISDD). In this study we investigated and compared the performance and microbial community of ISDD process operating under initially anoxic, then micro-aerobic and finally switch back to anoxic condition. For all the three tested scenarios, comparable bioreactor performance in terms of sulfate (95.0 ± 4.4%, 90.6 ± 3.8%, 89.8 ± 3.5%) and nitrate (∼100%) removal was achieved. However, a shift of ISDD bioreactor from micro-aerobic to anoxic environment clearly increased the S0 production (30.6%), relative to that at initial anoxic condition (14.2%). Further anoxic bioreactor operation with different influent nitrate concentrations also obtained satisfactory performance particularly in terms of S0 production. Microbial community analysis results showed that functional microorganisms selectively enriched at micro-aerobic condition, particularly sulfide-oxidizing bacteria (SOB), could also function well and enhance S0 production when bioreactor switching from micro-aerobic to anoxic environment. We proposed that micro-aerobic strategy could function as a bio-selector and provide a new idea in functional microorganisms selectively enrichment for wastewater treatment. Copyright 2018 Elsevier Ltd |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | 115 bytes; text/html |
| اللغة: | unknown |
| Relation: | Chemosphere, Volume 212 , Page: 837 - 844; http://ir.lib.ntust.edu.tw/handle/987654321/74036; http://ir.lib.ntust.edu.tw/bitstream/987654321/74036/1/index.html |
| الاتاحة: | http://ir.lib.ntust.edu.tw/handle/987654321/74036 http://ir.lib.ntust.edu.tw/bitstream/987654321/74036/1/index.html |
| رقم الانضمام: | edsbas.6CA9F0BF |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |